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o3

OpenAI

Reasoning. Internal CoT billed as output

Input Price

$2.00

per 1M tokens

Output Price

$8.00

per 1M tokens

Context Window

200K

tokens

Max Output

100K

tokens

Additional Pricing

Cached Input / 1M

$1.00

Price History

-80% input since launch
medium speedtextimageReleased 2025-04-16